diff --git a/.env.example b/.env.example
index b8370c5..81e0e12 100644
--- a/.env.example
+++ b/.env.example
@@ -14,3 +14,6 @@ INFLUX_ORG=solectrus
 # Customize InfluxDB storage
 INFLUX_BUCKET=my-solectrus-bucket
 INFLUX_MEASUREMENT=Tibber
+
+# Timezone
+TZ=Europe/Berlin
diff --git a/.github/workflows/push.yml b/.github/workflows/push.yml
index 50f21d7..9732688 100644
--- a/.github/workflows/push.yml
+++ b/.github/workflows/push.yml
@@ -21,6 +21,7 @@ jobs:
     env:
       CC_TEST_REPORTER_ID: ${{ secrets.CC_TEST_REPORTER_ID }}
       CI: true
+      TZ: Europe/Berlin
 
     steps:
       - name: Checkout the code
diff --git a/Dockerfile b/Dockerfile
index 843f746..ff1c0d0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,6 +11,9 @@ RUN bundle config --local frozen 1 && \
 FROM ruby:3.2.2-alpine
 LABEL maintainer="georg@ledermann.dev"
 
+# Add tzdata to get correct timezone
+RUN apk add --no-cache tzdata
+
 # Decrease memory usage
 ENV MALLOC_ARENA_MAX 2